The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 2024
Filed:
Aug. 04, 2022
Method and system for quickly determining transient stability of half-wavelength transmission system
State Grid Shandong Electric Power Research Institute, Shandong, CN;
Hao Tian, Shandong, CN;
Dong Yang, Shandong, CN;
Zhe Jiang, Shandong, CN;
Kang Zhao, Shandong, CN;
Huan Ma, Shandong, CN;
Ning Zhou, Shandong, CN;
Zhixuan Zhang, Shandong, CN;
Dingyi Cheng, Shandong, CN;
Shan Li, Shandong, CN;
Wenxue Liu, Shandong, CN;
Qiao Fang, Shandong, CN;
Xudong Hao, Shandong, CN;
Facai Xing, Shandong, CN;
Abstract
The present disclosure provides a method and a system for quickly determining transient stability of a half-wavelength transmission system. The method includes: obtaining power and a power angle of a feeding-end generator of a half-wavelength transmission system; and determining transient power angle stability and a power angle instability mode of the half-wavelength transmission system by using a constructed index system, where two power angle instability modes, that is, an instability mode 1 and an instability mode 2, are specifically constructed for the half-wavelength transmission system based on an equal area method. Based on the equal area method, the present disclosure constructs two instability modes specific to the half-wavelength transmission system, so as to accurately describe transient power angle characteristics of the half-wavelength transmission system under a severe fault, and characteristics of the two instability modes are significantly different from those of an AC transmission mode.